<!DOCTYPE html>
<meta name="viewport" content="width=device-width, user-scalable=no" />
<script>
  // NOTE: It is important that this test be run with the Android viewport
  // flags turned on.
  if (window.internals) {
    internals.settings.setHideScrollbars(true);
  }
</script>
<style>
  html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    background-color: palegreen;
  }
  #bottom {
    position: fixed;
    right: 0px;
    width: 200px;
    top: 0px;
    height: 500px;
    background-color: coral;
  }
</style>

Test passes if the orange bar's top edge is at the top of the screen.
<div id="bottom"></div>
